What Best Explains Why Bacteria Can Reproduce So Much More

What best explains why bacteria can reproduce so much more rapidly than an organism like a mushroom?

A) Mushrooms reproduce using spores that require a lengthy exposure to the environment before the outer coating can break open.
B) Bacteria live in extreme environments and can avoid having to wait for more favorable conditions to reproduce, like mushrooms and other plants.
C) Since most bacteria cause disease they are avoided by consumers, while organisms like mushrooms are quickly eaten, preventing rapid population growth.
D) Mushrooms reproduce sexually, so the proper mating types must contact one another before reproduction can proceed.